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A bayonet cooler is used to reduce the temperature of a pharmaceutical fluid. The pharmaceutical fluid flows through the cooler, which is fabricated of 10-mm
A bank of drying ovens is mounted on a rack in a room with an ambient air temperature of 27°C. The cubical ovens are 500 mm to a side, and the spacing
A 6-in.-OD pipe is buried with its centerline 50 in. below the surface of the ground [k of soil is 0.20 Btu/(h ft °F)]
A 50-mm-thick air gap separates two horizontal metal plates that form the top surface of an industrial furnace.
A building window pane that is 1.2 m high and 0.8 m wide is separated from the ambient air by a storm window of the same height and width.
A circular pipe of 25-mm outside diameter is placed in an airstream at 25°C and l-atm pressure. The air moves in cross flow over the pipe at 15 m/s
A circular, hot gas jet at T8 is directed normal to a circular plate that has radius ro and is maintained at a uniform temperature Ts.
A 30-cm-OD pipe with a surface temperature of 90°C carries steam over a distance of 100 m. The pipe is buried with its center line at a depth of 1 m
A circular grill of diameter 0.25 m and emissivity 0.9 is maintained at a constant surface temperature of 130°C
A Bakelite coating is to be used with a 10-mm-diameter conducting rod, whose surface is maintained at 200°C by passage of an electrical current
A billet of stainless steel, AISI 316, with a diameter of 150 mm and a length of 500 mm emerges from a heat treatment process at 200°C and is placed
A boiler used to generate saturated steam is in the form of an un-finned, cross-flow heat exchanger, with water flowing through the tubes and a high-temperature
A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200°e. The rod is in an air environment with T8 = 20°C
A 200-mm-square, 10-mm-thick tile has the thermo physical properties of pyrex (e = 0.80) and emerges from a curing process at an initial temperature of Ti = 140
A 2.5-cm-OD, 2-cm-ID copper pipe carriers liquid oxygen to the storage site of a space shuttle at -183°C and 0.04 m3/min.
A 2.5-cm-OD hot steam line at 100°C runs parallel to a 5.0 cm OD cold water line at 15°C. The pipes are 5 cm center to center and deeply buried
A 2-mm-thick layer of water on an electrically heated plate is maintained at a temperature of Tw = 340 K, as dry air at T8 = 300 K flows over the surface
A 1.4-kg aluminum household iron has a 500 W heating element. The surface area is 0.046 m2. The ambient temperature is 21°C and the surface heat transfer
A 1-cm-thick, 1-m-square steel plate is exposed to sunlight and absorbs a solar flux of 800 W/m2. The bottom of the plate is insulated, the edges are maintained
A 2 m x 2 m vertical plate is exposed on one side to saturated steam at atmospheric pressure and on the other side to cooling water that maintains a plate
A 2-mm-diameter electrical wire is insulated by a 2-mm-thick rubberized sheath (k = 0.13 W/m · K), and the wire/sheath interface is characterized by a thermal
A 20-mm diameter sphere is suspended in a dry air stream with a temperature of 22°C. The power supplied to an embedded electrical heater within the sphere
A 25-mm-diameter copper sphere with a low emissivity coating is removed from an oven at a uniform temperature of 85°C and allowed to cool in a quiescent fluid
A 40-mm-Iong, 2-mm-diameter pin fin is fabricated of an aluminum alloy (k = 140 W/m2 · K).
A 25-mm-diameter, high-tension line has an electrical resistance of 10- 4 n/m and is transmitting a current of 1000 A.